US10160651B2 - Dispersion and method for the production thereof - Google Patents
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- US10160651B2 US10160651B2 US15/276,393 US201615276393A US10160651B2 US 10160651 B2 US10160651 B2 US 10160651B2 US 201615276393 A US201615276393 A US 201615276393A US 10160651 B2 US10160651 B2 US 10160651B2
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
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- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/168—After-treatment
- C01B32/174—Derivatisation; Solubilisation; Dispersion in solvents
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- C—CHEMISTRY; METALLURGY
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- C01B32/21—After-treatment
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
- C08J3/095—Oxygen containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/09—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
- C08J3/091—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids characterised by the chemical constitution of the organic liquid
- C08J3/097—Sulfur containing compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
- C08L1/28—Alkyl ethers
- C08L1/286—Alkyl ethers substituted with acid radicals, e.g. carboxymethyl cellulose [CMC]
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/04—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of carbon-silicon compounds, carbon or silicon
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/06—Multi-walled nanotubes
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/20—Nanotubes characterized by their properties
- C01B2202/28—Solid content in solvents
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/20—Nanotubes characterized by their properties
- C01B2202/36—Diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Definitions
- the present invention relates to a dispersion as well as a method for the production thereof.
- Dispersions are already known in the most varied compositions and for the most varied fields of application. Dispersions usually consist of at least a dispersing liquid as well as at least one solid substance, which is distributed in the dispersing liquid. Depending on how the dispersion is treated, the latter may have, for example, a liquid or pasty consistency after it has been produced.
- the object of the present invention is to provide a dispersion that possesses particularly good properties, in particular with respect to viscosity and/or stability and/or electrical conductivity and/or thermal conductivity.
- an improved method for the production of such a dispersion will be provided.
- particularly advantageous application possibilities for such a dispersion will be indicated.
- a dispersion consisting of a dispersing liquid and at least one solid substance which is distributed in the dispersing liquid, characterized in that the dispersing liquid has an aqueous and/or non-aqueous base, that the at least one solid substance is formed of graphite and/or of porous carbon and/or of carbon nanomaterial and/or of coke and that the at least one solid substance is distributed homogeneously and stably in the dispersing liquid.
- This object is also achieved by a method for the production of a dispersion as described above characterized in that the dispersion is produced by applying a strong accelerating voltage.
- This object is also achieved by a use of a dispersion as described above or a dispersion produced by a method as described above characterized in that the dispersion is produced by applying a strong accelerating voltage as an additive for improving the mechanical, electrical or thermal properties of a material, in batteries, storage batteries or capacitors, as a coating on surfaces, as polymer additive, as ink pastes or as reaction partners for polymerizations, as an additive for ceramics, for a ceramic precursor, for a metal, for a metal alloy, for glass, for yarns, for textiles, or for paper, for the production of fibers, of nonwoven materials or of paper, or as an electrostatic shield or as a material for an electrostatic shield.
- a dispersion is prepared, consisting of a dispersing liquid and at least one solid substance that is distributed in the dispersing liquid.
- the dispersion is characterized according to the invention in that the dispersing liquid has an aqueous and/or a non-aqueous base, that the at least one solid substance is formed of graphite and/or of carbon nanomaterial and/or of coke and/or of porous carbon and that the at least one solid substance is distributed homogeneously and stably in the dispersing liquid.
- a dispersion in the sense of the present invention generally involves a distribution of at least one substance in another substance that is as fine and complete as possible, but wherein a true solution is not formed.
- At least one solid substance is dispersed in a liquid, whereby the solid substance is distributed homogeneously in the liquid and remains stably distributed therein.
- the dispersing liquid used according to the invention has an aqueous and/or a non-aqueous base, whereby combinations of these are also particularly permitted.
- the invention is not limited to specific types of dispersing liquids. Several advantageous, but not exclusive examples will be explained in detail below for this purpose.
- non-aqueous dispersing liquids such as, e.g., polar, nonpolar, ionic; e.g., monohydric or polyhydric alcohols, for example polyols; esters; ketones; amides; carboxylic acids; aldehydes; aliphatic, aromatic, naphthenic hydrocarbons; heterocycles; ionic liquids and any mixtures thereof.
- polar, nonpolar, ionic e.g., monohydric or polyhydric alcohols, for example polyols; esters; ketones; amides; carboxylic acids; aldehydes; aliphatic, aromatic, naphthenic hydrocarbons; heterocycles; ionic liquids and any mixtures thereof.
- the dispersion has at least one solid substance, wherein, of course, more than one solid substance may also be present.
- the at least one solid substance is formed of graphite and/or of carbon nanomaterial and/or of coke and/or of porous carbon, whereby the individual materials can be used either individually each time, or also, however, in any combination.
- the graphites used may be, for example, natural graphites, synthetically produced graphites and their precursors, intercalated graphites (expanded graphites) and the like.
- the carbon nanomaterials may consist of carbon nanotubes (single-walled and multi-walled), carbon nanofibers (herringbone, platelet, screw-type), nanohorns, nanocones, and the like. Carbon nanotubes are also designated internationally as carbon nanotubes (single-walled and multi-walled); carbon nanofibers are also designated internationally as carbon nanofibers (herringbone, platelet, screw-type).
- Calcined, partially graphitized or graphitized cokes can be used, for example, as cokes.
- the cokes may originate from degassed coal or from petroleum coke.
- the at least one solid substance is distributed homogeneously and stably in the dispersing liquid.
- Very homogeneous dispersions can be prepared from the named materials in the production of these dispersions, in particular, due to process conditions such as, for example, pressure, temperature, shearing forces, and the like.
- At least one additive can be added to the dispersion.
- these may be special stabilizing additives.
- special additives may be necessary for stabilizing dispersions due to the high processing pressure and the high shearing forces when the dispersion is produced according to the invention, as described further below.
- the invention is not limited to specific materials for additives. The following may be used, for example: polyvinyl alcohols, polyvinylpyrrolidones, lignin sulfonates, polysaccharides, such as, e.g., alginates, xanthans, dextrins, starch derivatives, cellulose ether, and the like.
- At least one binder can be added to the dispersion.
- special organic binders may be added to the initial materials of the dispersion, such as, for example, polyvinylidene fluoride (PVDF), so that during manufacture a homogeneous, stable dispersion can be produced therefrom.
- PVDF polyvinylidene fluoride
- NMP N-methylpyrrolidone
- At least one acid and/or at least one acid-acting compound can be added to the dispersion.
- the latter may involve, for example, organic acids, such as, e.g., acetic acid, formic acid, malonic acid anhydride, and the like.
- organic acids such as, e.g., acetic acid, formic acid, malonic acid anhydride, and the like.
- inorganic acids such as, e.g., sulfuric acid, nitric acid, and the like.
- At least one base and/or at least one base-acting compound can be added to the dispersion.
- the latter may involve, for example, potassium hydroxides, amines, polyethylene imines, and the like.
- At least one salt and/or at least one salt-type compound can be added to the dispersion.
- These materials can be selected, for example, from the group of alkali salts, alkaline-earth salts, metal salts, organic acids or inorganic acids, such as, for example, potassium carbonate or potassium oxalate, whereby the invention is not limited, of course, to the named examples.
- At least one peroxide such as, for example, hydrogen peroxide, diacetyl peroxide, dibenzoyl peroxide, or the like, and/or at least one boron compound can be added to the dispersion.
- At least one reaction partner for a polymerization can be contained in the dispersion.
- polyols may be used, for example, but the invention is not limited, of course, to the named example.
- a dispersion formed according to the preceding embodiments can be produced in a particularly advantageous manner by the method according to the invention, which is described as follows.
- a method for the production of a dispersion according to the invention is provided, which is characterized according to the invention in that the dispersion is produced by applying a strong accelerating voltage.
- Stable dispersions of graphites and/or carbon nanomaterials and/or cokes and/or porous carbons as well as combinations thereof can be produced with the method according to the invention.
- the basic principle of the method is based on the fact that a dispersion is produced by applying a strong accelerating voltage, for example, with the help of additives.
- a dispersion is produced by applying a strong accelerating voltage, for example, with the help of additives.
- Either an aqueous or a non-aqueous dispersion may be used for the dispersion.
- the initial product of the dispersion is pumped through a reaction chamber with high acceleration and at high pressure.
- the dispersal i.e., the splitting of aggregates and agglomerates into single particles, is achieved by applying an extreme acceleration.
- the dispersion will be pumped through a reaction chamber at extreme pressure.
- the initial product of the dispersion is thus pumped through the reaction chamber at a pressure between 500 bars and 5,000 bars.
- the pumping through the chamber can be performed with a shearing velocity between 500,000 sec ⁇ 1 and 8,000,000 sec ⁇ 1 .
- the pressure amounts to 1,000 bars or to at least approximately 1,000 bars and the shearing velocity amounts to 5,000,000 sec ⁇ 1 .
- the reaction chamber has at least one dispersion guide with at least one baffle plate, whereby the dispersion is pumped through the dispersion guide equipped with the at least one baffle plate.
- a dispersion guide generally involves a structural configuration for correctly guiding or leading the dispersion through the reaction chamber.
- the additives are selected so that they act either by electrochemical shielding or by steric stabilizing.
- the at least one dispersion guide can have a three-dimensional channel structure, in particular, a serpentine-shaped channel structure, wherein the dispersion is pumped through the three-dimensional channel structure.
- the described method is also suitable for the purpose of mechanically and/or chemically modifying the materials used.
- graphites can be delaminated and carbon nanotubes or fibers can be unraveled and shortened.
- chemically alter the materials by means of special additives.
- the graphite can be modified with boron by adding a special boron compound.
- the surface properties of the materials in a targeted manner For example, the surfaces of the materials can be modified by using special amines or polyethylene imines.
- oxygen-containing groups can be produced by using peroxides.
- dispersions can be produced with properties that have been unknown up until now, with respect to viscosity, stability, as well as electrical and thermal conductivity.
- dispersions of carbon nanotubes can have a very high viscosity even at low concentrations.
- completely new types of dispersions can be produced, which make possible, for example, surface coatings with high electrical conductivity, as well as good mechanical and chemical properties.
- the properties of the carrier medium (temperature, vapor pressure, viscosity, dissolved gas quantities), as well as its interaction with the type and concentration of the dispersed solid substance also play a large role.
- the properties of the carrier medium temperature, vapor pressure, viscosity, dissolved gas quantities
- its interaction with the type and concentration of the dispersed solid substance also play a large role.
- the flow and cavitation fields consequently, not only are agglomerates and aggregates torn apart, but primary particles may also be broken down.
- this disintegration or comminution is characterized via percent fracture, comminution ratio and surface increase and increases with increasing particle size and energy absorption. This increase via energy absorption occurs degressively and is accompanied by a broadening of the particle-size distribution. It is thus clearly confirmed, accordingly, on the one hand, that larger particles have a lower strength than smaller particles, and, on the other hand, that with increasing intensity of stress, a state of stress is established that increasingly prevents a further comminution.
- the dispersion according to the invention as described further above or a dispersion produced by the method according to the invention described further above can be used for a large number of advantageous fields of application.
- such types of dispersions can be used as an additive for improving the mechanical, electrical or thermal properties of a material.
- these types of dispersions can be used in batteries and storage batteries, for example, as additives for anodes, cathodes, electrolytes, as activated materials, and the like.
- These types of dispersions can also be used, for example, in capacitors, for example, as activated materials and additives for so-called supercapacitors.
- dispersions may also be used, for example, as a coating on surfaces, for example, as a coating on metal, glass, ceramic, or plastic surfaces, and the like.
- dispersions can also be used advantageously as polymer additives, as ink pastes or as reaction partners for polymerizations.
- such dispersions can also be used, for example, for the production of fibers, nonwoven fabrics, paper, and the like.
- Such dispersions can also be used advantageously as electrostatic shields or as materials or components for electrostatic shields.
- the present invention advantageously relates to the production and use of stable dispersions of graphites, carbon nanomaterials, cokes and combinations thereof.
- the dispersing liquid base for these dispersions may be of an aqueous as well as of a non-aqueous nature and may contain special stabilizing additives.
- the materials used may also be modified mechanically and/or chemically by this method.
- the graphite After passage, the graphite had a particle size D50 of 1.4 ⁇ m and a specific surface of 26.2 m 2 /g as well as a viscosity of 6300 mPa s.
- the graphite particles did not show agglomeration and the increase of surface and viscosity as well as the increase of the aspect ratio from 13.2 to 16.6 showed a delamination along with the dispersal.
- Example 1 330 g of natural graphite powder to which 15 g of naphthalene sulfonic acid condensation product sodium salt and 5 g of xanthan had been added, were added to 650 ml of demineralized water.
- the graphite had a particle size D50 of 10.5 ⁇ m, a carbon content of 99.98%, a specific BET surface of 7.7 m 2 /g and an aspect ratio of 14.9.
- the viscosity of the preliminary dispersion was 830 mPa s.
- the preliminary dispersion was then subjected to a shearing velocity of 5,800,000, sec ⁇ 1 at a pressure of 2200 bars.
- the graphite After passage, the graphite had a particle size D50 of 6.6 ⁇ m and a specific surface of 18.3 m 2 /g as well as a viscosity of 5900 mPa s.
- the graphite particles did not show agglomeration and the increase of surface and viscosity as well as the increase of the aspect ratio from 14.9 to 22.1 showed a delamination along with the dispersal.
- Example 1 10 g of carbon nanotubes (CNT-MW) without additive addition were dispersed in 500 ml of 2-propanol.
- the carbon nanotubes had diameters of 10-20 nm and lengths of 1-10 ⁇ m, and their specific BET surface was 200 m 2 /g.
- the preliminary dispersion with a viscosity of 600 mPa s was then subjected to a shearing velocity of 2,500,000 sec ⁇ 1 at a pressure of 1000 bars. After the passage, the dispersion was very pasty and a clear reduction in the degree of looping and nest formation could be observed in the scanning electron micrographs.
- the carbon nanotubes were shortened to 0.2-4 ⁇ m by this method, but the diameters of 10-20 nm were maintained.
- the specific BET surface of 200 m 2 /g was not changed. A delaminating of the carbon nanotubes could not be established; rather, only a shortening was found. This dispersion was stable for months without additive.
Abstract
Description
Claims (16)
Priority Applications (1)
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US15/276,393 US10160651B2 (en) | 2005-09-09 | 2016-09-26 | Dispersion and method for the production thereof |
Applications Claiming Priority (6)
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DE102005043054A DE102005043054A1 (en) | 2005-09-09 | 2005-09-09 | Dispersion and process for its preparation |
DE102005043054 | 2005-09-09 | ||
DE102005043054.6 | 2005-09-09 | ||
PCT/DE2006/001559 WO2007028369A1 (en) | 2005-09-09 | 2006-09-06 | Dispersion and method for the production thereof |
US99175508A | 2008-03-10 | 2008-03-10 | |
US15/276,393 US10160651B2 (en) | 2005-09-09 | 2016-09-26 | Dispersion and method for the production thereof |
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PCT/DE2006/001559 Division WO2007028369A1 (en) | 2005-09-09 | 2006-09-06 | Dispersion and method for the production thereof |
US11/991,755 Division US20090224211A1 (en) | 2005-09-09 | 2006-09-06 | Dispersion and Method for the Production Thereof |
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US20170008770A1 US20170008770A1 (en) | 2017-01-12 |
US10160651B2 true US10160651B2 (en) | 2018-12-25 |
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US11/991,755 Abandoned US20090224211A1 (en) | 2005-09-09 | 2006-09-06 | Dispersion and Method for the Production Thereof |
US15/276,393 Active US10160651B2 (en) | 2005-09-09 | 2016-09-26 | Dispersion and method for the production thereof |
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US (2) | US20090224211A1 (en) |
EP (1) | EP1926684A1 (en) |
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WO (1) | WO2007028369A1 (en) |
Families Citing this family (8)
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DE102009032520A1 (en) | 2009-07-10 | 2011-01-20 | Magna Steyr Fahrzeugtechnik Ag & Co Kg | Method for producing and operating for the first time a transmission unit with a lubricant based on water, comprises applying a mixture of vaporizable liquid, comminuted solid lubricant and preservative to finished rotary parts of the unit |
EP2406430B1 (en) * | 2009-03-09 | 2016-05-25 | Future Carbon GmbH | Networks of carbon nano materials and process for their manufacture |
DE102010013362A1 (en) * | 2010-03-30 | 2011-10-06 | Siemens Aktiengesellschaft | Substrate for a field emitter, process for the preparation of the substrate and use of the substrate |
CN103214772A (en) * | 2012-01-18 | 2013-07-24 | 广西格润科技有限公司 | Novel heat-dissipation material and preparation method thereof |
JP5933374B2 (en) * | 2012-07-03 | 2016-06-08 | ハリマ化成株式会社 | Method for producing thin-layer graphite or thin-layer graphite compound |
DE102013213273A1 (en) * | 2013-02-22 | 2014-08-28 | Bayer Materialscience Aktiengesellschaft | Carbon nanotube-containing dispersion and its use in the manufacture of electrodes |
US11634545B2 (en) * | 2016-12-19 | 2023-04-25 | Adeka Corporation | Layered-substance-containing solution and method of manufacturing same |
KR102482505B1 (en) * | 2018-06-11 | 2022-12-30 | 주식회사 엘지화학 | Carbon nanotube dispersed solution and method for preparing the same |
Citations (1)
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WO2003107359A1 (en) * | 2002-06-14 | 2003-12-24 | Hyperion Catalysis International, Inc. | Electroconductive carbon fibril-based inks and coatings |
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DE2966935D1 (en) * | 1979-05-21 | 1984-05-30 | Ubbelohde Alfred R J P | Graphite composition |
ES2033937T3 (en) * | 1987-01-15 | 1993-04-01 | Lonza Ag | USE OF A DISPERSION FOR THE COATING OF CATHODES FOR BATTERIES. |
DE69727671T2 (en) * | 1996-05-15 | 2004-09-30 | Hyperion Catalysis International, Inc., Cambridge | RIGID, POROUS CARBON STRUCTURES, METHOD FOR THE PRODUCTION AND USE THEREOF AND PRODUCTS CONTAINING THESE STRUCTURES |
DE19910707A1 (en) * | 1999-03-10 | 2000-09-21 | Gerd Wiedemann | Process for treating graphite comprises applying a pressure gradient to a graphite fill or graphite suspension and accelerating the fill or suspension during transition from a first to a second region |
JP2005001983A (en) * | 2003-05-20 | 2005-01-06 | Futaba Corp | Super-dispersion state nano-carbon and method for manufacturing the same |
US7381352B2 (en) * | 2003-07-23 | 2008-06-03 | Mitsubishi Gas Chemical Company, Inc. | Dispersion of thin particles having a skeleton consisting of carbons |
GB0404713D0 (en) * | 2004-03-02 | 2004-04-07 | Isis Innovation | Separation of carbon nanotubes |
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US20050224764A1 (en) * | 2002-06-14 | 2005-10-13 | Hyperion Catalysis International, Inc. | Electroconductive carbon fibril-based inks snd coatings |
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DE102005043054A1 (en) | 2007-03-15 |
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WO2007028369A1 (en) | 2007-03-15 |
US20090224211A1 (en) | 2009-09-10 |
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